Origin of red blood cell slippers in confined geometries

Titelangaben

Becic, Berin ; Graessel, Katharina ; Gekle, Stephan:
Origin of red blood cell slippers in confined geometries.
In: Physical Review Fluids. Bd. 10 (2025) . - L061101.
ISSN 2469-990X
DOI der Verlagsversion: https://doi.org/10.1103/PhysRevFluids.10.L061101

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Abstract

One of the most intriguing characteristics of red blood cells is their ability to form asymmetric, rotating slipper states even in symmetric channel flows. Here we argue that the common association of these slipper states with the well-understood tank-treading in shear flow is incomplete. We use boundary-integral simulations for a systematic decomposition of the channel flow field into linear shear and quadratic curvature components. Our findings show that a fore-aft asymmetry induced by flow curvature is a plausible mechanism behind the formation of slipper shapes.